Recent questions tagged JAVA

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java - Android: padding left a bitmap with white color

How to set all white the 10 rows on the left side of a Bitmap? I'v got a Bitmap that has to be padded ... wrong? Any suggestion? thanks a lot! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Can I find the URL for a spring mvc controller in the view layer?

I think what I need is called reverse url resolution in Django. Lets say I have an AddUserController that goes ... this possible in Spring MVC? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Android: Implementing ViewHolder

I am trying to implement ViewHolder in my Android app, but I keep getting that ViewHolder cannot be resolved to a ... how to get around this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Does Spring Transaction Management Work with Spring WebFlux?

Does Spring's support for RDBMS transaction management also work in Spring WebFlux? For example, assuming proper ... driver. Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Converting a ldap date

I'm exporting users from an ldap programmatically. Therefor I'm retrieving the users from ldap. One of the ... way to convert it directly? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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305 views

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java - Nashorn bug when calling overloaded method with varargs parameter

Assume the following API: package nashorn.test; public class API { public static void test(String string) { throw ... API.test(new MyType()); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why does the JFrame setSize() method not set the size correctly?

So I've been programming in java for a semester or so, and I've had this problem a few times and finally got around ... and I'll get it to you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - ThreadLocal garbage collection

From javadoc Each thread holds an implicit reference to its copy of a thread-local variable as long as the ... subject for garbage collection? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - When I do query from solr, it occurred a common exception telling me that undefined field userId

I am developing a web application. I use spring mvc framework , cassandra and solr. I use ... .catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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771 views

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java - Javadoc link to src/main/resource or src/test/resource file using relative path

I would find it extremely useful if there was a way to put a link in javadoc to a standard resource file ... if javadoc itself falls short. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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333 views

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java - parquet.io.ParquetDecodingException: Can not read value at 0 in block -1 in file

I have saved a remote DB table in Hive using saveAsTable method, now when i try to access the Hive table data ... I might be doing wrong here? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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361 views

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java - Spring RESTful Service as a WAR instead of JAR in Tomcat

I am in the process of creating a REST web service in Java Spring. I've successfully loaded STS and the ... get webapp folder created in XAMPP? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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240 views

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java - Comparing a double against zero

I'm new to Java and I've been trying to implement an algorithm for finding the roots of a cubical equation. The problem ... than zero."); } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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316 views

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java - How to exit a while loop after a certain time?

I have a while loop and I want it to exit after some time has elapsed. For example: while(condition and 10 sec has not passed){ } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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228 views

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java - Finding the last row in an Excel spreadsheet

I'm trying to find the index of the last row in an excel spreadsheet using Apache's POI for Java. I ... over the 1140/1162 supposed rows. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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404 views

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java - Spring bean initialization with multiple-arg method

I would like to create the following Spring bean (a JMX monitor) which has a method setThresholds(Number highThreshold, ... </property> </bean> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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315 views

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java - lost one day for a date

On client side, i use dd/MM/yyyy date format. The field use a twitter bootstrap 3 datetime picker (https:// ... day is lost. Any explication? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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692 views

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java - @SpringBootApplication cannot be resolved to a type In STS

I am very new to STS. I searched for this error in stackoverflow. I didn't find correct matching answer. ... help will be appriciated. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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527 views

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java - DestroyJavaVM thread ALWAYS running

When profiling my application I came across a weird behavior - the DestroyJavaVM thread is ALWAYS running - ... its initialization? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

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java - Class file not found in IntelliJ

In IntelliJ I get this weird error when I try to compile. Cannot find annotation method 'cascade()' in type 'javax ... to JDC yada yada yada." See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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340 views

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java - Cannot find class in same package

I am trying to compile Board.java, which is in the same package (and directory) as Hexagon.java, but I get ... am doing wrong. Any ideas? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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232 views

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java native interface - How to use FIND_JNI on cmake

I'm trying to write a build for my project where I'm trying to replace autobuild, and I need to proper use ... to be portable to other users. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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464 views

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java - Change how eclipse formatter wraps long strings

I have set the eclipse java formatter to wrap lines that exceed 120 characters to conform to our team's ... in the eclipse java formatter? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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411 views

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java - com.google.gson.internal.LinkedHashTreeMap cannot be cast to my object

I have JSON file looks like { "SUBS_UID" : { "featureSetName" : "SIEMENSGSMTELEPHONY MULTISIM", "featureName ... .vsv.models.FeatureDetail". See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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520 views

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java - SpringBoot doesn't handle org.hibernate.exception.ConstraintViolationException

I have defined a pattern for validating email in my Entity class. In my validation exception handler ... (BeanValidationEventListener.java:78) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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414 views

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java - Compare two XML strings ignoring element order

Suppose I have two xml strings <test> <elem>a</elem> <elem>b</elem> </test> <test> <elem>b</ ... XMLAssert.assertXMLEqual("meh", diff, true); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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297 views

1 answer

java - Using NOT operator in IF conditions

Is it really a good practice to avoid using NOT operator in IF conditions in order to make your code better ... then if (!doSomething()). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

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java - Generate sample Json output from Json Schema

I want to know whether there is a method in which I can generate sample json output based on a json schema ... there a better way available ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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